linux-stable/drivers/hid/hid-roccat-savu.c
Thomas Gleixner 2874c5fd28 treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 152
Based on 1 normalized pattern(s):

  this program is free software you can redistribute it and or modify
  it under the terms of the gnu general public license as published by
  the free software foundation either version 2 of the license or at
  your option any later version

extracted by the scancode license scanner the SPDX license identifier

  GPL-2.0-or-later

has been chosen to replace the boilerplate/reference in 3029 file(s).

Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Reviewed-by: Allison Randal <allison@lohutok.net>
Cc: linux-spdx@vger.kernel.org
Link: https://lkml.kernel.org/r/20190527070032.746973796@linutronix.de
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2019-05-30 11:26:32 -07:00

226 lines
5 KiB
C

// SPDX-License-Identifier: GPL-2.0-or-later
/*
* Roccat Savu driver for Linux
*
* Copyright (c) 2012 Stefan Achatz <erazor_de@users.sourceforge.net>
*/
/*
*/
/* Roccat Savu is a gamer mouse with macro keys that can be configured in
* 5 profiles.
*/
#include <linux/device.h>
#include <linux/input.h>
#include <linux/hid.h>
#include <linux/module.h>
#include <linux/slab.h>
#include <linux/hid-roccat.h>
#include "hid-ids.h"
#include "hid-roccat-common.h"
#include "hid-roccat-savu.h"
static struct class *savu_class;
ROCCAT_COMMON2_BIN_ATTRIBUTE_W(control, 0x4, 0x03);
ROCCAT_COMMON2_BIN_ATTRIBUTE_RW(profile, 0x5, 0x03);
ROCCAT_COMMON2_BIN_ATTRIBUTE_RW(general, 0x6, 0x10);
ROCCAT_COMMON2_BIN_ATTRIBUTE_RW(buttons, 0x7, 0x2f);
ROCCAT_COMMON2_BIN_ATTRIBUTE_RW(macro, 0x8, 0x0823);
ROCCAT_COMMON2_BIN_ATTRIBUTE_RW(info, 0x9, 0x08);
ROCCAT_COMMON2_BIN_ATTRIBUTE_RW(sensor, 0xc, 0x04);
static struct bin_attribute *savu_bin_attrs[] = {
&bin_attr_control,
&bin_attr_profile,
&bin_attr_general,
&bin_attr_buttons,
&bin_attr_macro,
&bin_attr_info,
&bin_attr_sensor,
NULL,
};
static const struct attribute_group savu_group = {
.bin_attrs = savu_bin_attrs,
};
static const struct attribute_group *savu_groups[] = {
&savu_group,
NULL,
};
static int savu_init_specials(struct hid_device *hdev)
{
struct usb_interface *intf = to_usb_interface(hdev->dev.parent);
struct usb_device *usb_dev = interface_to_usbdev(intf);
struct roccat_common2_device *savu;
int retval;
if (intf->cur_altsetting->desc.bInterfaceProtocol
!= USB_INTERFACE_PROTOCOL_MOUSE) {
hid_set_drvdata(hdev, NULL);
return 0;
}
savu = kzalloc(sizeof(*savu), GFP_KERNEL);
if (!savu) {
hid_err(hdev, "can't alloc device descriptor\n");
return -ENOMEM;
}
hid_set_drvdata(hdev, savu);
retval = roccat_common2_device_init_struct(usb_dev, savu);
if (retval) {
hid_err(hdev, "couldn't init Savu device\n");
goto exit_free;
}
retval = roccat_connect(savu_class, hdev,
sizeof(struct savu_roccat_report));
if (retval < 0) {
hid_err(hdev, "couldn't init char dev\n");
} else {
savu->chrdev_minor = retval;
savu->roccat_claimed = 1;
}
return 0;
exit_free:
kfree(savu);
return retval;
}
static void savu_remove_specials(struct hid_device *hdev)
{
struct usb_interface *intf = to_usb_interface(hdev->dev.parent);
struct roccat_common2_device *savu;
if (intf->cur_altsetting->desc.bInterfaceProtocol
!= USB_INTERFACE_PROTOCOL_MOUSE)
return;
savu = hid_get_drvdata(hdev);
if (savu->roccat_claimed)
roccat_disconnect(savu->chrdev_minor);
kfree(savu);
}
static int savu_probe(struct hid_device *hdev,
const struct hid_device_id *id)
{
int retval;
retval = hid_parse(hdev);
if (retval) {
hid_err(hdev, "parse failed\n");
goto exit;
}
retval = hid_hw_start(hdev, HID_CONNECT_DEFAULT);
if (retval) {
hid_err(hdev, "hw start failed\n");
goto exit;
}
retval = savu_init_specials(hdev);
if (retval) {
hid_err(hdev, "couldn't install mouse\n");
goto exit_stop;
}
return 0;
exit_stop:
hid_hw_stop(hdev);
exit:
return retval;
}
static void savu_remove(struct hid_device *hdev)
{
savu_remove_specials(hdev);
hid_hw_stop(hdev);
}
static void savu_report_to_chrdev(struct roccat_common2_device const *savu,
u8 const *data)
{
struct savu_roccat_report roccat_report;
struct savu_mouse_report_special const *special_report;
if (data[0] != SAVU_MOUSE_REPORT_NUMBER_SPECIAL)
return;
special_report = (struct savu_mouse_report_special const *)data;
roccat_report.type = special_report->type;
roccat_report.data[0] = special_report->data[0];
roccat_report.data[1] = special_report->data[1];
roccat_report_event(savu->chrdev_minor,
(uint8_t const *)&roccat_report);
}
static int savu_raw_event(struct hid_device *hdev,
struct hid_report *report, u8 *data, int size)
{
struct usb_interface *intf = to_usb_interface(hdev->dev.parent);
struct roccat_common2_device *savu = hid_get_drvdata(hdev);
if (intf->cur_altsetting->desc.bInterfaceProtocol
!= USB_INTERFACE_PROTOCOL_MOUSE)
return 0;
if (savu == NULL)
return 0;
if (savu->roccat_claimed)
savu_report_to_chrdev(savu, data);
return 0;
}
static const struct hid_device_id savu_devices[] = {
{ HID_USB_DEVICE(USB_VENDOR_ID_ROCCAT, USB_DEVICE_ID_ROCCAT_SAVU) },
{ }
};
MODULE_DEVICE_TABLE(hid, savu_devices);
static struct hid_driver savu_driver = {
.name = "savu",
.id_table = savu_devices,
.probe = savu_probe,
.remove = savu_remove,
.raw_event = savu_raw_event
};
static int __init savu_init(void)
{
int retval;
savu_class = class_create(THIS_MODULE, "savu");
if (IS_ERR(savu_class))
return PTR_ERR(savu_class);
savu_class->dev_groups = savu_groups;
retval = hid_register_driver(&savu_driver);
if (retval)
class_destroy(savu_class);
return retval;
}
static void __exit savu_exit(void)
{
hid_unregister_driver(&savu_driver);
class_destroy(savu_class);
}
module_init(savu_init);
module_exit(savu_exit);
MODULE_AUTHOR("Stefan Achatz");
MODULE_DESCRIPTION("USB Roccat Savu driver");
MODULE_LICENSE("GPL v2");